Gudgeon



No. 6l4,989. Patented Nov. 29, I898. G. E. SANDE.

GUDGEON.

(Application filed Mar. 4, 1898.) (No Model.)

T'I Z WfLTIESEES- TIP/B11102- aw GEUPEEE 5EL1]dE NITED STATES PATENT OFFICE.

GEORGE E. SANDE, 0F NEENAII, \VISCONSIN.

GUDGEON.

SPECIFICATION forming part of Letters Patent No. 614,989, dated November 29, 1898.

Application filed March 4,1898. Serial No. 672,520. (No model.)

To all whom it may concern:

Be it known that I, GEORGE E. SANDE, a citizen of the United States, and a resident of Neenah, in the county of Winnebago and State of Wisconsin, have invented a Gudgeon and the Manner of Securing the Same in the End of a Wood Roll, of which the following is a specification.

My invention relates to certain improvements in gudgeons for wood rolls or shafts; and it consists of a metallic rod or shaft having wings welded to it intermediate its ends and a ring closely surrounding said Wings, the longer end of said shaft (its Wings and the ring being driven or pressed into the end of the roll) and its shorter end being left to project from the end of the roll and to be turned up for a journal for said end; and its object is to provide a gudgeon for wood rolls that can be applied to them in such a manner that a slight shrinkage of the wood or the continual rotation of the roll will not loosen the gudgeon,but Will,after its journals and outer surface are turned up true and the journals mounted in suitable bearings,preserve its true quality and its outer surface and that of the roll revolve truly, and it is illustrated in the accompanying drawings, in which- Figure 1 is an end View of the gudgeon. Fig. 2 is an elevation of a ring which is a part of the device. Fig. 3 is an end elevation of a roll, showing a gudgeon applied to it. Fig. 4 is an edge View of a wedge which is used for securing the gudgeon in placefand Fig. 5 is an elevation of the side of one end of a roll, partly in section, upon the line a a of Fig. 3, having my improved gudgeon applied to it. The two ends of the roll being alike but one end is shown.

Similar numerals indicate like parts in the several views.

1 indicates the journal of the roll; 2, the shaft of the gudgeon; 3, wings upon the shaft; 4., a ring encircling the wings; 5, wedges; 6,

an end of a wood roll; 7, a hole in the roll for receiving the shaft of the gudgeon.

Gudgeons have been used consisting of its journal and several Wings, (usually four,) the wings being fitted into the end of the roll, with bands of iron around the roll near its end, but the shaft has not extended into the Wood of the roll beyond the wings, and consequently any great weight being imposed upon the roll the gudgeon was loosened and the roll made to run out of a true circle. They have also been made with both round and square shafts driven into the wood of the roll and some of them having a flange or collar secured to the shaft with a key or by shrinkage and to the roll with Wood-screws or joint-bolts; but all of these methods have failed to meet the demands put upon the roll by the work it had to perform.

This improvement is particularly well suited for long rolls, of a small diameter, such as are used upon paper-making machines in large numbers, and which have their outer surfaces unencumbered with bands upon their ends, and which, lightness being desired, are made of soft Woods but it may be applied to large rolls and to any kind of wood suited for rolls.

The description and claims of the application refer to applying my improvement only to rolls; but it should be understood that the term roll or rolls here used includes any piece of wood to which a gudgeon may be applied, whether it is used as an idle-roll or a shaft for the transmission of power.

I make and apply the gudgeons as follows, this description being suited for rolls of eight or ten feet long and four to six inches in diameter, the metallic parts being increased or diminished in size as the size and use of the roll seem to demand: I take a piece of Wood of a length and diameter suited to the desired roll and bore a hole centrally in each end about sixteen or eighteen inches in depth and a little smaller than the shaft to be inserted. For an inch shaft a fifteen-sixteenths inch hole is suitable if the wood is not too soft. Upon the shaft, at equal distances from one end equal to the length desired for the journal of the roll, several wings are welded, preferably three for a roll of four to eight or ten inches in diameter, although this number may be Varied from, said wings extending radially from the shaft about one and one-eighth inches. These wings are made of about one and one-fourth by one-eighth inch iron, and the edges to be driven into the wood are beveled off slightly for their more easy entrance. The ring 4 is then prepared of a diameter suited for inclosing and fitting closely upon the ends of the wings, its inner edge being beveled off, as shown in Fig. 5, so as to compress the wood upon the shaft as it is forced into the end of the wood. The shaft, having its inner end slightly tapered, is then, with its wings and the ring, driven or pressed into the end of the wood, the wings and ring flush with the end of the wood. The wedges 5 are then driven into the end of the roll in the several spaces between the ring and the wings, thereby securing the gudgeon tightly in place. Both gudgeons having been prepared and inserted, the roll placed in a lathe, and its journals and outer surface turned off to the desired size and the ends of the roll faced up, the roll is ready for use.

It will be noticed that in combining the ring with the wings a much larger bearing surface in the wood upon the outside of the ring is obtained than the circumference of the shaft alone presents, that the extension of the shaft into the roll beyond the wings adds greatly to the holding quality of the gudgeon, and also that the several sections of the space inclosed by the ring and bet ween the wings when wedged properly makes a combination of elements for securing the gudgeon in the end of the roll of great strength compared with the weight of metal entering into it.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. A gudgeon for a wood roll, consisting of a round shaft having welded to it intermediate its ends and at an equal distance from its shorter end, a plurality of wings radially projecting therefrom, a ring separate therefrom for encircling said wings and being adapted to be driven into the end of said roll and to fit closely upon the outer ends of said wings, the longer end of said shaft being adapted to enter a hole in said roll of slightly less diameter than said shaft, said end, the wings and ring being adapted to be driven into the end of said roll, the outer edges of the wings and ring flush with the end of the roll, and the shorter end of said shaft being left to project from the end of the roll for serving as a journal upon which said roll may revolve, substantially as described.

2. The combination with a wood roll, of a gudgeon for the same consisting of a round metallic shaft having welded to it intermediate its ends and at an equal distance from its shorter end, a plurality of wings radially projecting therefrom, a ring encircling said wings and being fitted to closely contact with their outer ends, the longer end of said shaft being adapted to enter a hole in the end of said roll of slightly less diameter than said shaft, and the shaft, wings and ring, being forced into the end of said roll, the wings and ring flush with the end of the roll, and a wedge driven into each compartment formed by said wings and ring, and the shorter end of said shaft projecting from the end of the roll and serving as a journal-shaft upon which said roll may be centered, turned, and mounted for revolution, substantially as set forth and shown.

GEORGE E. SAN D E.

\Vitnesses:

0. II. Bnnos'rnon, O. A. JOHNSON. 

